As with many things in R&D, you build on the partial success and failures of things in the past. We had an adjustable-length mechanism in that first version—a fairly simple clamp—that did an awful lot ...

The new Ping Sigma 2 putter family solves two problems in putter design. One is more of a recent issue, while the other is probably as old as putters themselves. And yet it’s the latter that not only ...